Blade length approximately 27cm, including the bolster. Steel is kasumi (layered steel). It's unclear whether it's shirogami (white paper steel) or aogami (blue paper steel). Review: "It seems to be from Sakai Kanekichi. Probably from the Kansai region. I looked it up online, and theirs seemed to be cheap and good, so I bought it. It's good!" 4mm thick at the base.